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Holt McDougal Physics Chapter 21: Atomic Physics Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which of the following defines wave-particle duality?

Question 2 2. Who was the first to mathematically express the full concept of wave-particle duality?

Question 3 3. When writing electron configurations, electrons are represented in their lowest possible energy state, called their _____.

Question 4 4. An electron is traveling at 50 meters per second. If the mass of an electron is 9.1 x 10^-31, what is the de-Broglie wavelength of the electron?

Question 5 5. Which scientist is credited with discovering the charge of individual electrons?

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Question 6 6. Which of the following is an application of wave-particle duality?

Question 7 7. Why did Democritus disagree with Aristotle?

Question 8 8. Which of the following is an example of when an electron absorbs energy?

Question 9 9. Why should you avoid looking directly at magnesium burning?

Question 10 10. The Bohr model of the atom:

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Question 11 11. Who first coined the term atom, meaning indivisible?

Question 12 12. Which of the following was the instrument used for the discovery of the electron?

Question 13 13. What did Rutherford discover in his gold foil experiment?

Question 14 14. When an electron moves from an excited state to a ground state, it will _____.

Question 15 15. Why do everyday objects not show wave properties?

Holt McDougal Physics Chapter 21: Atomic Physics Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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